Portal 2 Chapter 3 Test Chamber 14

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Chapter 3 - Test Chamber 14
sp_a2_laser_relays.bsp Laser Relays

Chamber number 1.pngChamber number 4.png

Test Chamber Infobox previous.png
Test Chamber Infobox next.png
Test Chamber Infobox Portal Guy.png
Chamber progress 1.pngChamber progress 4.pngChamber progress slash.pngChamber progress 2.pngChamber progress 2.png

Portal 2 Chapter 3 Test Chamber 14.png
Chamber icon cube dispenser.pngChamber icon cube button.pngChamber icon cube hazard.pngChamber icon player button.pngChamber icon water hazard.png
Chamber icon laser redirection on.pngChamber icon laser sensor on.pngChamber icon turret hazard.pngChamber icon laser hazard.pngChamber icon dirty water.png

This is the twenty-third level of the game, and is set within a dilapidated Test Chamber. This level features the Thermal Discouragement Beam and introduces Relays, which act similarly to Receptacles and must be activated by the Beam in order to gain access to the Chamberlock.



  • Go through the door and then walk along the catwalk until you reach the end.
  • Wait for the machines to finish building the Chamber and then you will be lifted up to the chamber.
  • Use the Discouragement Redirection Cube to redirect the Thermal Discouragement Beam to the two receptacles (the one in the front and the one in the far-right).
  • Shoot a portal on the wall at the end of the Beam and then fire the other portal on the wall nearest to the last remaining receptacle to activate it.
  • Go in the Chamberlock.

Video walkthrough

Download Download demo file


Main article: Portal 2 soundtrack

Adrenal Vapor by Aperture Science Psychoacoustics Laboratory [2:36] | Download Download | Play icon.png Play